<div ng-controller="cityController">
    
    <div><button ng-click="getCity()">getCity</button></div> 

    <ul ng-repeat="city in cityList">
        <li>{{city}}</li>
    </ul>

    <input type="text" ng-model="newCity"><button ng-click="addCity()">addCity</button><button ng-click="delCity()">delCity</button>
</div>

<hr/>
 <a ui-sref="app">app</a>